Woodlink"s Going GreenTM Wren House is an feeder that is ornithologically designed to attract wrens. The birdhouse features an easy opening side for ease of cleaning. The birdhouse"s screwed together construction means that it will last for years to come. Features a .125-inch hole which is ideal for wrens. Made of up to 90-percent post-consumer recycled plastic. Hangs with an attached cable. Made in the USA.